package com.atguigu.gulimall.member.exception;

/**
 * @program: gulimall
 * @description:
 * @author: 江天赐
 * @create: 2022-08-11 11:47
 */
public class UserNameExistException extends RuntimeException {
    public UserNameExistException() {
        super("用户名已经存在");
    }
}
